10. Tik-Tok (Return To Oz)

He just seems nice more than anything. As a robot he is only fitfully useful, with a rudimentary clockwork control system that has three separate ways of going wrong and requires repowering with more regularity than your average iPhone battery. But when he’s wound tight he is unstoppable, able to clatter anything that comes up against him. And his little twitchy moustache is just adorable.